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FRITZ HANSBERG
stands-up among the very leading manufacturers
of green sand molding equipment.
More than thirty years of experience in the design
and manufacture of green sand molding facilities
make the name of FRITZ
HANSBERG's one of the most respected in the
industry worldwide.
Nearly fifty FRITZ
HANSBERG molding lines are currently in production
with many world-class foundries in Europe and
overseas, producing the widest array of cast iron
and aluminum castings, from automobile and commercial
vehicle, to general engineering, municipality,
and domestic heating.
Based upon a three-phase molding sequence featuring
pre-fill, shoot, and squeeze, the HANSBERG Molding
System is a consolidated, foundry-proven mold
making technology which ensures the production
of castings consistently complying with the strictest
quality control requirements.
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Excellent dimensional accuracy
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Unmatched surface definition
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Minimum weight variation.
Each of the phases of the molding sequence contributes
to the production of top quality molds that reproduce
the most intricate patterns, with minimum regard
to variation in the characteristics of the sand.
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Stripping
Loading
Pre-filling
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Shooting
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Squeezing
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Outstanding casting skin quality, achieved
thanks to the pre-fill phase which ensures
the uniform distribution of clot-free sand
on the whole pattern surface
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Possibility of using facing sand with (if
required) different characteristics from those
of the back-up sand
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Excellent mold surface hardness up to the
flask edges, thanks to the high compaction
work obtained converting the kinetic energy
accumulated by the sand during the shoot phase
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No need of venting either pattern or pattern-plate
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Strictly controlled compression force per
mold surface unit (adjustable from 4 to 14
kgf/cm2), thanks to the hydraulic squeeze
phase
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Minimum usage of sand. Thanks to the combined
action of the shoot and squeeze phases, there
is no need of mold strickling. The molding
machine automatically adjusts itself compensating
variations of sand compactibility
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Unmatched productivity levels (up to 200
molds/h with one molding machine; up to 350
molds/h with two molding machines)
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Inside flask dimensions up to 2,000 x 1,250
x 500/500 mm
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Minimum operating noise (Leq < 85 dB(A)).
FRITZ HANSBERG
has recently developed a brand new generation
of automatic green sand molding lines with features
which can not but impose themselves to the attention
of every foundry interested in long-lasting solutions
to its molding requirements.
The result of truly innovating design, the newest
FRITZ HANSBERG
molding lines ensure performance levels unthought
of until yesterday and yet to be equaled by other
manufacturers of molding equipment.
Vertical-loop molding machine ensuring production
rates well above 180 molds/h, with flasks of inner
dimensions of 1,000 x 1,100 mm. The drag and cope
pattern plate bolsters travel in fast sequence
through the molding machine, first through the
pre-fill station, where they mate with the corresponding
flask and are partially filled with facing sand,
then through the shoot/squeeze/strip station where
the actual mold is produced. Pattern change-over
is entirely within cycle time, a feature of paramount
importance to most foundries
State-of-the art actuator control technology
allows to optimize flask handling by strictly
controlling maximum and minimum speed as well
as acceleration and deceleration.
Extremely compact layouts allow for remarkable
economic advantages in terms of both capital investment
(reduced shop-floor usage and civil engineering
requirements) and operating costs (reduced maintenance,
higher equipment reliability).
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